Swaging and compressing tool.



E. O. L. VOGT.

SWAGING AND GOMPRESSING TOOL.

APPLICATION FILED AUG.4, 1911,

1 @52,193 Patented Feb.4g1913.

UNITED TE ERNEST oT'ro LEOPOLD voe'r, or-rHI Ann rnr ,:PnNNsY vAum.

swneilvs nn co PREssI verooL.

To all whom, it mcycoacemr and a: resident of the city of Philadelphia,

State of. Pennsylvania, having declared my intention of becoming a citizenof the United States, have invented certain Improvements' in Swaging and 3 ijxompressing Tools, of which ..the following is-a specification. I

My invention relates to means for effecting swaging or compressing operations upon metal; metal sheets and the like, and the ob-' 'ject-of my invention is .toprovide an improved form of tool adapted to effect compression or condensation of suchmetal or metal plate with aminimum of compressive The tool forming the subject of my invention may be mounted in a press or similar structure as a die, operable in any suitable direction, and arranged toact upon a plat'e orother metal section disposedupon QT'.lI1

' proper relation to a suitable anvil.

The tool is vertically movable, and maybe relatively fixed againstrotative movement; the plate or other metal object operated upon being moved on the anvilto changev the relation of the successive operations of the tool upon the same, or the tool may be rotated with respect to the plate. The operating face of the tool is provided with one or more spiral or helical ribs. If desired, the anvil may have an operating surface similar to that of thetool forming the die.

These and other features of my invention will be more fully understood by reference to the accompanying drawings in connection with the-particular description thereof, in which:

Figure 1, is a view of one form of operating surface embodying my invention for a tool of the character described; Figs. 2, 3 and 4 are similar views illustrating other forms of operating surfaces within the scope of my invention; Fig. 5, is a sectional view on the line aa, Fig. 2, illustrativegenerally of the character of the operating surface of the tools shown in Figs. 1, 2, 3 and 4; Figs. 6 and 7 are views similar to F igs. 1, 2, etseg showing tools having other forms of operating surfaces embodying my invention, Figs. 8 to 15, inclusive, are views :Specificati on of Letters Patent.

- v similar to i Fig; 5, ilfustrating other forms Be it known thatI, ERNEST Orro Lnoronn Voer, a subject of the Emperor of Germany,

tion, 7 I

In all of the operatingsurfaces of the tool forming the subject of my invention, there is one common. feature,-viz.,-the formation of one or more spiral othelical ribs uponthe same. I

In Fig. 1, have shown a single spiral or helical rib 1, separated by a groove 2 of similar contour, formed on the end of a tool,

I a Patented Feb. 4,1913, Application filed August 4, 1911. Serial No. 642,238. 7 I

views illustrating still other forms of operatmg surfaces within the scope of my inven preferably circular in cross section, indi- .cated-at 3. i In F igs, 2, 3 and 4,'simila r op' erating faces are shown, having, respectively, two, three and four spiral or helical rib formations, separated by corresponding helical or spiral grooves. In these several instances, the ribs and grooves may-he regularly arranged, that isto say, the distance between the convolutions of any pair of ribs may be the same at any point. Fig. 5, perhaps, more aptly shows this condition, which figure is a sectional View of the structure shown in Fig. 2, taken on the line.-'a-a,'

and is 'illustrativeof the several forms of to'ols'shown inFigs. 1-, 2, 3 and 4. In Figs. 6 and 7, however, I have shown a tool with ribs of a different form or character upon the operatingsurface thereof.- In Fig. 6,

the rib starts from the center-in asmallhelix or spiral which increases gradually but continuously to its end adjacent the perimeter; while in Fig. -7, the helix .or spiral is much larger at the center. and contracts gradually but continuously to the perimeter u of the tool. I

In the form of tools shown in Figs. 1 to 7,,inclusive, the operating faces of the re spective ribs are on a plane paralleling the plane of the grooves. It will be understood, however, that the face of the tool may have a different cross sectional contour, and in Figs. 8, 9, et sea, I have shown tools having ribbed operating faces in which the planes or the general direction of the surfaces of the ribs and grooves those shown in Figs. 1, 2, et 829.,

In Fig. 8, I have shown atool in which the grooves and ribs follow a convex contour which may beva true are, or any other suitdiifer from and able curvature, and the operating surface of the ribs is preferably concentric with the roots of the several grooves. in Fig. 9, I have shown ,a tool in which the ribs and grooves follow a concaved contour; the operating surface of the ribs being concentric with the roots of the grooves and of any suitable curvature.

In Fig. 10, the end of the tool is conical, and the roots of the grooves and the operat ingsurfaces of the ribs may be parallelto a plane following the general direction of the taper or bevel of the conical end. In the tool. shown in Fig. 11, the disposal of the ribs and grooves is reversed; the operating end of the tool being concaved.

In Fig. 12, I have shown a tool in which the ribs may be disposed in a substantially horizontal plane, while the roots of the grooves may be disposed on the arc of a circle struck from a point above the plane of the ribs; the latter increasing in height from the center to the perimeter of the tool.

In the tool shown in Fig. 13, the ribs may' also be disposed in a horizontal plane, while the roots of the grooves may be disposed on the arc of a circle struck from a point below the plane of the ribs; the latter decreasing in height from the center to the perimeter of the tool.

In Fig. 1d, a tool is shown having ribs disposed in a horizontal plane in substantially the same manner as the tool shown in Fig. 12, while the roots of the grooves may be in planes tangent to the plane of the operating surfaces of the ribs; being inclined upwardly and outwardly from the center of the operating surface of the tool;

producing ribs of substantially the same.

character as those shown in Fig. 12. In Fig. 15, I have shown a tool having a construction the reverse of the structure shown in Fig. 14, with ribs of the type illustrated in Fig. 13.

In the tools of the several figures enumerated, the ribs are of substantially the same character in cross section; being sub stantially round or oval. They may be, of course, of any desired cross-sectional contour, and in Figs. 16, 17,18 and 19, I have shown other forms of ribs. \Vhile the ribs shown in these views are in a single plane, it will be understood that ribs of a similar contour may be disposed in the manner' illustrated in the other views.

It will be.understood, of course, that the several forms of tool faces shown in Figs. 1, 2, 3, 4, 6 and 7, may be arranged with the contours shown in Figs. 8 to 15, inclusive; that is, that the tool face, no matter what its cross sectional contour may be, may have one, two, three or more ribs following the spiral or helical form, and that such ribs may be regular spirals, or of the type shown in Figs. 6 and 7, and further, that the contour of the ribs may be of any dc sired character; such for instance-as indi- 'cated in Figs. 5, 8, 9, ct say, :oras indicated in Figs. 16 to 19, inclusive. 7

In the use of my improved tool, it is employed in a suitable press, or hammer, operating in any suitable manner, generally serving as an upper die. The work, a sheet or block of metal, for instance, mounted upon a suitable anvil, being subjected to the force of such die is condensed or compressed in substantially a tangential direction, and

caused to {low in substantially a radial di-' rection, or substantially at right angles to the plane. of direction of the compressive force. The work being moved between the intervals of theaction of the tool, or the tool being moved; all portions of the surface of such work will be subjected to the same degree of compression, and by reason of the spiral or helical ribs the action will be gradual and the deformations caused by one impression will be merged with those of succeeding impressions without abrupt changes.

I claim: 1

1. A tool for swaging or compressing metal adapted to be repeatedly forced against the metal and retracted and alternately therewith turned in a rotary direc tion relatively to the metal, said tool having an operating face provided with one or more spiral or helical ribs extending at nearly a right angle to the radii of the tool, whereby successive impressions of the tool cause the metal to flow in 'a substantially, radial directionand effect a very gradual but powerful compression with a minimum of power.

2. A tool for swaging or compressing metal having an operating face provided with one or more spiral or helical ribs extending entirely around the axis of the tool.

3. A tool for swaging or compressing metal having an operating face with one or more spiral ribs separated by spiral grooves, said ribs and grooves extending eccentrically with "respect to the axis and more nearly parallel to the circumference of the tool at any given point than to aradial line intersecting said point.

4:. A tool for swaging or compressing metal having an operating face with one or more spiral or helical ribs, the apices of which ribs are disposed'at different distances from a plane at right angles to the axis of the tool.

5. A tool for swaging or compressing metal having an operating facewith one or more spiral or helical ribs separated by a spiral or helical groove or grooves whose base or bases are disposed at different distances from a plane at right angles to the metal having an operating face With a spiral metal having a spherical operating face In testimony whereof, I have signed my with one or more spiral or helical ribs name to this specification, in the presence 10 formed thereon, V of two subscribing Witnesses.

7. A tool for swaging or compressmg ERNEST OTTO LEbPOLD VOGT.

or helical rib and an adjacent spiral or helilVitnesses: cal groove, said 1'11) and groove being of MURRAY 0. Bones, uniform cross SQJtlOIlZLl area. Jos. H. KLEIN. 

